Financing a sustainable construction project can be done in different ways. One option is to apply for funding from KfW Bank or other government institutions. There are various funding programs that relate to different aspects of sustainable building, such as energy efficiency, use of renewable energies or ecological building materials. Another option is to take out a loan from a bank that specializes in sustainable financing. These banks attach particular importance to the sustainability of the construction project and also take these aspects into account when granting loans. It can also make sense to look for investors who are interested in sustainable construction projects and are willing to finance the project. One option, for example, is the crowd investing platform “Green Rocket”, on which investors can specifically support sustainable projects.